中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

2 records (took 0.018 seconds)

    METHOD AND APPARATUS FOR PLANNING OR CONTROLLING A RADIATION TREATMENT
    1.
    发明申请
    METHOD AND APPARATUS FOR PLANNING OR CONTROLLING A RADIATION TREATMENT 审中-公开
    用于规划或控制辐射治疗的方法和装置

    公开(公告)号：US20160051842A1

    公开(公告)日：2016-02-25

    申请号：US14921363

    申请日：2015-10-23

    Applicant: Brainlab AG

    Inventor： Pascal BERTRAM ,  Claus PROMBERGER ,  Thomas FLURSCHUETZ

    IPC: A61N5/10 ,  G06T7/00 ,  G06T15/08

    CPC classification number: A61N5/1039 ,  A61N5/103 ,  A61N5/1048 ,  A61N2005/1061 ,  A61N2005/1074 ,  G06F19/00 ,  G06F19/3481 ,  G06T7/0012 ,  G06T7/11 ,  G06T15/06 ,  G06T15/08 ,  G06T2200/04 ,  G06T2207/10072 ,  G06T2207/30024 ,  G06T2207/30096 ,  G06T2210/41 ,  G06T2211/40

    Abstract: A method for generating planning data or control data for a radiation treatment, comprising the following steps: acquiring segmented data of an object which contains a treatment volume and a non-treatment volume; modelling at least some or all of the volume or surface of the treatment volume as a source of light or rays exhibiting a predefined or constant initial intensity; modelling the non-treatment volume as comprising volumetric elements or voxels which each exhibit an individually assigned feature or attenuation or transparency value (tmin≦t≦tmax) for the light or rays which feature is assigned to the light or ray or which attenuation or transparency maintains or reduces the intensity of the light or ray as it passes through the respective volumetric element or voxel, wherein the feature or attenuation or transparency value is individually assigned to each volumetric element or voxel of the non-treatment volume; defining a map surface which surrounds the treatment volume or the object; calculating an accumulated intensity value for points or areas on the map surface, the accumulated intensity being the sum of the intensities of all the rays which exhibit the predefined or constant initial intensity and are emitted from the volume or surface of the treatment volume and reach a respective point on the map surface preferably by following a straight line, wherein if the ray passes through a non-treatment volume or voxel, the intensity of the respective ray is reduced or attenuated by a factor which is determined by the individual feature or attenuation or transparency value of the respective non-treatment volume or voxel; and generating an intensity distribution on the map surface using the calculated accumulated intensities.

    Abstract translation: 一种用于产生辐射处理的规划数据或控制数据的方法，包括以下步骤：获取包含处理量和非处理量的对象的分段数据; 将处理体积的至少一部分或全部体积或表面建模为呈现预定义或恒定初始强度的光源或射线; 将非处理体积建模为包括体积元素或体素，其各自表现出分配给光或射线的特征的光或射线的单独赋予的特征或衰减或透明度值（tmin＆nlE; t＆nlE; tmax）或哪种衰减或透明度 当光或射线穿过相应的体积元素或体素时，维持或减小光或射线的强度，其中将特征或衰减或透明度值分别分配给非处理体积的每个体积元素或体素; 定义围绕处理体积或物体的地图表面; 计算地图表面上的点或区域的累积强度值，累积强度是表现出预定义或恒定初始强度的所有射线的强度之和，并且从处理体积的体积或表面发射并达到 优选地通过遵循直线的地图表面上的相应点，其中如果光线通过非处理体积或体素，则各个射线的强度由单个特征或衰减确定的因子减小或衰减，或 相应的非处理体积或体素的透明度值; 以及使用所计算的累积强度在所述地图表面上生成强度分布。

Patent Agency Ranking